<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
</head>
<body>

  <div id="app"></div>
  
  <script src="./lib/vue.js"></script>
  <script>
    const app = Vue.createApp({
      // 插值语法: {{title}}
      template: `<h2>{{message}}</h2>`,
      data: function() {
        return {
          title: "Hello World",
          message: "你好啊, Vue3"
        }
      }
    })
    app.mount("#app")
  </script>
</body>
</html>